Covering knife in band cutting machine - cutting lamination packet in coarse stroke followed by fine stroke and fitting knife cover after cutting

摘要

The knife is covered using a movable knife cover (6), which is connected to a runner (4) of a linear motor (3) and a fixing unit (8) acting on the runner is arranged fixed in position. The linear motor (3) is a poly-solenoid linear motor. The fixing unit (8) is constructed from an electromagnet, a clamping lever and a clamping ring. The knife is entirely covered following the fixing of the cover in the upper fine stroke setting, after the ending of the cutting operation.